How To Fix CNV_PE801 - Unknown attribute &1 in class &2 for compare

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 801

• Message text: Unknown attribute &1 in class &2 for compare

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE801 - Unknown attribute &1 in class &2 for compare ?

  The SAP error message "CNV_PE801 Unknown attribute &1 in class &2 for compare" typically occurs during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or other data migration tools. This error indicates that the system is trying to compare an attribute (field) that is not recognized or does not exist in the specified class.
  Cause:
  
  Missing Attribute: The attribute specified in the error message does not exist in the class defined in the system.
  Incorrect Mapping: There may be an issue with the mapping of fields between the source and target systems, leading to the system looking for a non-existent attribute.
  Configuration Issues: The configuration of the data migration tool may not be set up correctly, leading to discrepancies in the expected attributes.
  Version Mismatch: If there are differences in the versions of the systems involved, certain attributes may not be available in one of the systems.
  
  Solution:
  
  Check Attribute Existence: Verify that the attribute (&1) exists in the class (&2) in the target system. You can do this by checking the data dictionary or the relevant class definitions.
  Review Mapping Configuration: Ensure that the mapping of fields between the source and target systems is correct. Adjust the mapping if necessary to align with the existing attributes.
  Update Configuration: If there are configuration settings related to the data migration tool, review and update them to ensure they are correct and complete.
  Consult Documentation: Refer to the SAP documentation for the specific data migration tool you are using to ensure that you are following the correct procedures and configurations.
  Check for Updates: Ensure that both the source and target systems are updated to the latest versions, as updates may include fixes for known issues.
  Debugging: If the issue persists, consider enabling debugging or logging for the migration process to gather more information about where the error is occurring.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to the error message. SAP frequently releases notes that address specific problems encountered by users.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review the official SAP documentation for the specific migration tool you are using, as it may provide insights into common errors and their resolutions.
  
  If the problem continues after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.